Friction-coupling.



No. 881,290. PATENTED. MARz'lO, 190s;

- w. BEILKE.

v FRICTION COUPLING. Y APPLICATION FILED ran. 5, 1907.

2 SHEETS-SHEET 1.

MMQMAQ/ THE NORRIS PETERS co.. wAsmNm-um m'c:

PATENTED MAR. 10, 1908,. w. BEILKB.

FRICTION COUPLING.

APPLICATION FILED FEB. 5,-1907- v 2 SHEETS-SHEET 2.

nurrn WILHELM BEILKE, OF OHARLOTTENBURG, GERMANY.

FRICTION-COUPLING.

To all whom it may concern:

Be it known that I, WILHELM BEILKE, a civil engineer, and a subject ofthe German Em eror, and a resident of 3 Herderstrasse, in t e city ofCharlottenburg, near Berlin, Kingdom of Prussia, and German Empire, haveinvented a certain new and useful Friction-Coupling, of which thefollowing is a specification.

This invention has reference to friction couplings having screw spindlesradially arranged to the shafts to be coupled and clamping jaws whichare to press uniformly from both sides against a coupling-ring. In thecouplings of this kind, as heretofore known, an exact adjustment of theclamping jaws in relation to each other or a subsequent readjustment ordisplacement of the same was not possible or could be effected withgreat difliculty only, especially in the case of irregular wear of theclamping chucks.

By means of this invention the readjustment of the clam ing jaws withuniform or irregular wear of t e clamping chucks in very wide limits isaccomplished in a very easy manner by providing the two threaded ends ofthe spindle with special journaling boxes, which are independent of eachother and which after the release of any kind of suitable lockingdevice, such as a set screw, will allow of adjustment and displacement.

Figure 1 shows one arm of the coupling cross in front view, Fig. 2 alongitudinal section of the same and a sector of the couplingring, Fig.3 is a top plan view of the regulating lever mechanism, Fig. 4 is alongitudinal section of a complete coupling with two radial spindles atleast.

a and b are the two shaft ends to be coupled together. Upon theshaft-end a the ring shaped disk 0 is mounted which constitutes onemember of the coupling and upon the shaft-end b, the hub dis arrangedwith the vertical coupling cross f. Upon this coupling cross f, thescrew spindle g is turnably mounted in a journal it being securedagainst displacement in the longitudinal direction by a ring shapedwasher i. The screw spindle g is provided with right and left handthreads and upon said spindle the annular pieces Z and Z are mountedwhich are provided with the clamping jaws k, k and which are to beSpecification of Letters Patent.

Application filed February 5, 1907.

Patented March 10, 1908.

Serial No. 355,792.

displaced in relation to each other by the rotation of the s indle g. Inthe vertical bores of the annular pieces Z and Z the'boxshaped femalemembers 0 and 0 are mounted, which are secured against twisting movementby small-screws s and which are indicated in section in Figs. 2 and 4.After loosening the said small screws .9, the female members 0 and 0 maybe rotated along the spindle, for the purpose of being able to readjustthe clamping jaws or any one of the same, in case of irregular wear ofthe wooden chucks. The adjustment of the clamping jaws in relation toeach other may be effected by means of a system of levers p, p, of whichthe lever p passes through an opening g of the coupling cross and ispivoted to an adjusting ring 1", displaceably arranged upon the hub d.When the clamping chucks k, k are worn uniformly the readjustment of theclamping jaws may be effected on the spindle by altering the point ofattachment of the lever p (see Fig. 3) upon the spindle 9. Anyunintentional disengagement of the coupling is prevented, in view of thescrew spindles producing a braking action.

The particular Way of mounting the spindle on the coupling cross, asWell as the system of levers for the adjustment and change of positionof the screw spindles do not constitute subjects of the presentinvention.

What I claim and desire to secure by Letters Patent of the United Statesis In a friction-coupling, comprising right and left handedscrew-spindles turnably journaled in a coupling cross and radiallyarranged to the shafts to be coupled a journaling box, independentlyadjustable, on each of the two thread-parts of each spindle, clampingpieces with jaws facing each other to the inside on each of the saidboxes, a coupling-ring between the said jaws, means for rotating thescrew-spindles all together, substantially as and for the purposedescribed.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WILHELM BEILKE. d

